Slow dynamics of supercooled liquid revealed by Rayleigh scattering of Mössbauer radiation method in time domain

Makina Saito, Andrea Battistoni, Shinji Kitao, Yasuhiro Kobayashi, Masayuki Kurokuzu, Yoshitaka Yoda, Makoto Seto

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Characteristic relaxation times τ of the microscopic correlation in o-terphenyl and glycerol were obtained by a time-domain interferometry method using nuclear resonant scattering of synchrotron radiation. From the temperature dependence of τ, a new decoupling temperature 278 K, which is below the conventional decoupling temperature 290 K, was obtained for o-terphenyl. Furthermore, we found a liquid-like relation between τ and q (momentum transfer) as τ ∝ q-2 at 285 K in o-terphenyl and 260 and 265 K in glycerol. However, an anomalous q dependence of the slow β relaxation time, τ ∝ q-2.9 and q -3.8, was observed in deeply supercooled (265 K) and glass (240 K) states, respectively, in o-terphenyl, indicating specially restricted dynamics of the slow β process.

Original languageEnglish
Pages (from-to)629-636
Number of pages8
JournalHyperfine Interactions
Volume226
Issue number1-3
DOIs
Publication statusPublished - 2014 Apr
Externally publishedYes

Keywords

  • Nuclear resonant scattering
  • Slow dynamics
  • Supercooled liquid
  • Time-domain interferometry method

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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